To make a large or wide nose appear smaller, all you need to do is reach for the highlighter!
After applying your foundation, swipe a light highlighter down the centre of the bridge of your nose, in the straightest line possible. The contrast of colour between the highlighter and foundation will make the sides of your nose appear darker, which will in turn make the nose appear narrower. The nose will look even smaller if you blend a tiny amount of bronzer or contour on either side of the nose. When done, be sure to set the look with translucent powder to ensure everything stays in place.